software-center crashed with SIGSEGV in debListParser::LoadReleaseInfo()

this happened after installing the beta 2 on my laptop.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: software-center 4.1.23.5
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Fri Sep 23 16:47:54 2011
ExecutablePath: /usr/share/software-center/software-center
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110921.2)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fefe5daf686 <_ZN13debListParser15LoadReleaseInfoERN8pkgCache15PkgFileIteratorER6FileFdSs+630>: mov %eax,(%r15)
 PC (0x7fefe5daf686) ok
 source "%eax" ok
 destination "(%r15)" (0x7fefcfcfc208) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: software-center
StacktraceTop:
 debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator&, FileFd&, std::string) () from /usr/lib/libapt-pkg.so.4.11
 debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/libapt-pkg.so.4.11
 ?? () from /usr/lib/libapt-pkg.so.4.11
 pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/libapt-pkg.so.4.11
 pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/libapt-pkg.so.4.11
Title: software-center crashed with SIGSEGV in debListParser::LoadReleaseInfo()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare